Clamping device



Sept. 14, 1937. H s POWELL 2,993,210

I CLAMPING DEVICE I Filed Jun 17, 1936 *E k l Patented Sept. 14, 193'? r r UNITED sTATss eATssT OFFICE- CLAMPING DEVICE Herbert S. Powell, Utica, N. Y.

Application June 17, 1936, Serial No. 85,807

2 Claims. (c1.'24-19) The present invention relates to new and usebracket M are provided with aligned openings ful improvements in a device for clamping tuthrough which a rivet it extends, thus providing bular conduits and more particularly to a device a connection between the ring member 10 and for clamping the projecting nipples of a mufiler the bracket It. The closed edge of the bracket 5 for internal combustion engines to the exhaust M forms a channel, the axis of which is sub- 5 and tail pipes. stantially tangential to the curvature of the An object of the invention is to provide a curved portion of the ring member l0 so that clamping device which is inexpensive to manuthe straight end portion 12 of the ring member facture, simple in construction, and readily apcan project therethrough. A lock washer I8 is 10 plicable to the parts which are to be clamped placed over the projecting end of the portion [2 together. of the ring member and the nut I3 is then The above and other objects of the invention threaded thereon. will in part be obvious and will be hereinafter As illustrated in Fig. 1 of the drawing, the more fully set forth. clamping device C is placed over the nipple N In the drawing: on the mufiler and the exhaust or tail pipe is 15 Fig. 1 is a fragmentary side elevation showing inserted within the nipple. The internal pethe clamping device in position to clamp the riphery f the entire p n device is su mufiler nipple to the exhaust or tail pipe. stantially circular so as'to conform to the outer Fig. 2 is a plan view showing the details of per p e y o the pp The nut is W the clamping device. tightened so as to draw the ring member H1 tight- 20 Fig. 3 is a sectional view of the clamping de- 137 agai st t e e t Surface of the pp N vice, taken along the line 33 of Fig. 2. and at the same time effect a tight engagement Fig. 4 is a top view of Fig. 2. between the curved edges l6, id of the bracket Referring more in detail to the accompany- M and the pp This tightening of h ing drawing, and particularly to Fig. 1, the exnut i3 W cause a i h n i g f h rin 25 haust or tail pipe P is shown extending into member Hi so as to reduce its internal diameter the projecting nipple N of a mufller M. The tail and effect the elempingeetiehpipe and projecting nipple are of the usual me- From the foregoing deser p it Will be tallic construction. The clamping device C is readily Seen that an efi a p device s shown in position around the nipple N to clamp e y afforded, and eheWhieh s p Strong the same to the exhaust or tail pip P and durable in construction. It is tobe under- The details of the clamping device will now Steed, Of Course, that the Clamping deV ay be described, reference being had to Figs. 2, 3 be used for Clamping tO V OU-S tubular and 4 of the drawing. The clamping device in- Conduits.

cludes a substantially rigid ring member Iii which t s t be clearly und s d t a minor 35 is of circular cross section and which may be Changes in the de s f CO St 'II II a d formed of relatively heavy metal stock. One r n m n of parts y be made Without end of the ring member I0 is flattened out so parting from the Scope 0f e invention 8 S as to provide a reduced flat portion H. The rtorth in the pp Claims- 1 40 opposite end 12 of the ring member it extends I 01811112 40 beyond the reduced end ll and is substantially A Clamping deViCe Comprising a amp tangential to the curved portion of the ring memring hav ng a portion thereof Shaped o 0 ber. This straight end I2 is threaded for the form to the cillveltllie Of a conduit to he clamped, reception of a nut l3. said clamping ring having a flat end of rela- A clamping or tension b k t 54 i formed tively small thickness and having the opposite of sheet metal and is folded upon itself so that end thereef eXtendiIlg b y e at end and the portions [5, led thereof are disposed on threaded, a clamping bracket for connecting the opposite sides of the reduced end H of the ring ends f said ring, said bracket having a p f member It. The inner edges It, [6a, of th side portions disposed one on each side of the said folded portions I5, led respectively are shaped fiat d of said ring and having the closed p rsymmetrically with respect to the curved por tion thereof substantially encircling the threaded tion of the ring member I!) so as to provide a end 0f Said ring, means Connecting the d p01- substantial continuation of the inner edge of tions of said bracket to the flat end of said ring, the ring member. The reduced end ll of the and nut means engaging the threaded end of 55 ring member it and the portions l5, |5a of the said ring and bearing against the edge of the 55 portion thereof substantially encircling the threaded end of said ring, the side portions of said bracket and the flat end of said ring having aligned openings therethrough, a rivet extending through said openings for connecting the fiat end of said ring to the side portions of said bracket, and nut means engaging the threaded end of said ring and bearing against the edge of the closed portion of said bracket for tightening the clamping device.

HERBERT S. POWELL. 

